#include "bits/stdc++.h"

#include<string>
#include<cstdio>
#include<cctype>
#include<vector>
#include<iterator>
using std::string;
using std::cin;
using std::cout;
using std::vector;
int main()
{
    // const string hexdigits="0123456789ABCDEF";
    // vector<int> v;
    // v.push_back(7);
    // v.push_back(100);
    // v.push_back('a');
    // cout<<v[2];
    /*vector<unsigned> scores(11,0);
    unsigned grades;
    while(cin>>grades)
        scores[grades/10]++;
    int i=0;
    while(i<=10)
        cout<<scores[i++]<<' ';*/
    string s="hjklm";
    cout<<s.begin();
    return 0;
}